Delivery mechanism



PYl 22, l941- o. c. ROESEN ET A 2,239,118

DELIVERY MECHANI SM Filed' Aug. 12, 1938 2 Sheets-Sheet l 1 mw n. m E1, www. Nm, JNQ, m w/ @I r v l. F 0, w mw 6,7 www www Nw WWK m N @N QMQ N xwbmbb WmwNkNxmNl M 4Q. x@

Apri1'22, 1941. o. c. Rox-:SEN TAL DELIVERY MECHANI SM FledAug. 12, 1938 2 Sheets-Sheet 2 Zrr/elc nu Qrcor C Eaeeen Patented Apr. 22, 194i UNlTE TES ENCE

Y Y 2.239.113 DELIVERY MEcHANrsM Application August 12, 193s, serial No. 224,426

4 claims. (ci. 27o-47) This invention relates to a delivery mechanism wherein severed sheets are taken from a transfer or collecting cylinder and delivered to a slowly moving delivery belt. It may be employed with any type of printing press for which it is particularly adapted or used with a converting machine where a web is converted into sheets.

The principal objects ofthe invention are to provide a departure from' the ordinary use of pins and rotating .cylinder in such a manner that sheets may be transferred to, and .moved along, a straight path under denite control to the delivery point, and to provideV for permitting especially efficient handling of open sheets at high speeds.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which y Fig. 1 is an end view of a preferred embodiment of this invention;

Fig. 2 is a side elevation;

Fig. 3 is a detailed view of one of the links of the conveyor, showing how it carries a de livery pin, and

Fig. 4 is an end View of the same.

Referring particularly to Fig. 1 a -cutting cylinder I is shown cooperating with a transfer cylinder 2 between which passes the web W. The

cutting cylinder is provided with cutting knives 3 cooperating, as is well known, with cutting rubbers 4 on the transfer cylinder. In this manner the web W is cut into sheets.

Two sets of pins 5 are carried by the transfer cylinder 2 for taking the forward end of the web. As the transfer cylinder 2 rotates in a counter-clockwise direction, pins 6, each mounted on a pivoted lever 1 on a collecting cylinder 8, take the sheets from the pins 5 of the transfer cylinder 2 and advances them.

In the particular device shown, three series of sheets are collected on each set of pins 6 before this batch is transferred to the delivery chains I9. This transfer is effected by the operation of a movable cam 9 pivoted at Ill and actuated through the `other end of the lever by a rotatable cam II, mounted in a suitable position. |I'he pivot cam 9 may be urged in a counter-clockwise direction by suitable springs lla.

It will be seen that when one of the two opposite projections I2 of the cam II moves the cam 9 slightly in` a clockwise direction, the said cam 9 is thereby projected into the path of the lever 1 and serves to with-draw the pins 6 from the sheet.

At this time a set of pins I3, carried by the delivery Achain I9, synchronize with the pins 6 and take the batch of severed sheets from the collecting cylinder down along a path between two inclined guides I4 and I5. The bottom portions I6 of the guide I4 are straight, and in this case vertical, and act as a final stop for the sheets as the curved portions of the guides i4 strip them from the delivery chain. As the sheets reach the bottom of the guides I4, oscillating fly sticks I'I move from the position shown in dotted lines in Fig. 1, to the position shown in full lines in Fig. 1. They press down the sheets on the de-l livery belts I8.

The delivery chains IS are mounted on sprockets 20 and 2l, the latter being carried by a shaft 22. meshing with a gear` 24 mounted on the shaft 25. On this saine shaft 25 vis mounted a cam 26 Which-in cooperation with a cam roller 2l car` ried onan arm 28, provides the oscillation for the fly sticks Il. A push spring 29, secured to the arm Z'Band" to a p'oppet 30 attached to the frame of the machine; serves to keep the fly sticks I'I in the full line position in Fig. 1 until such time as the cam 26 operates to move them to the dotted line position in the manner ldescribed.

The shaft 25 derives its power from gears 24 and 23 and chains I9, as well as gears, not shown, carried by the delivery sprocket 20 over which the chain passes. The sprockets 2B and cylinders, including transfer cylinder 2, may be driven in any -convenient manner from the printing machine, not shown herein.

Secured to the shaft 25 is a worm 3I meshing with a worm wheel 32 carried by a shaft 33 to which it is fixed. On the lower end of the shaft 33 is a worm 34 meshing with a worm Wheel 35 which is fixed on a shaft 36. On this shaft 36 is also fixed a series of pulleys 3l which accommodate the delivery belts I8. These belts I8 are supported at the opposite ends by supporting and idler pulleys 3B while Yidlers 39 are provided, mounted on pivoted arms 40 to serve as belt tighteners.

In Figs. 3 and 4 the mounting is shown for one of the pins I3 which is carried by a special chain link 4I of a delivery chain I9. The ends of this chain link are such that it can be connected into an ordinary chain, to replace an ordinary -chain link, and rotated over sprockets in the usual fashion.

From what has been shown it will be seen that severed sheets of paper will be handled and delivered in bunches of three, or some other num- On the shaft 22 is secured a gear 23 y ber of sheets, on the delivery belt I8. This invention furnishes a departure from the use of the Well known pins and rotating cylinders in l such a manner that the sheets may be transferred to, and movedalong, a straight path to the delivery point, thereby permitting efficient handling of open sheets at high speed.

Having thus described our invention and the advantages thereof, We do not Wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what We claim is:

1. In a delivery mechanism, the combinati of endless chains, shafts provided with pulleys over which said chains travel, and giiide's adjacent and parallel to the chains and having" spaces between them constituting guiding spaces for the sheets carried by the chains, a cam shaft, a worm on the cam shaft, a worm Wheel meshing with said Worm, delivery belts, connections from said Worin Wheel to the delivery belts for driving samea cam on the cam shaft, a Shaft provided with fly sticks, an arm on said shaft in position to be operated by said cain, vvherebythe ily ,sticks will be moved between the endless chains to deliver a bunch of papers from the chains to the delivery belts, and a spring for moving the y sticks in opposition to the cam motions.

2. vIn a sheet delivery mechanism, the combi nation With a cutting cylinder and a transfer with said worm, delivery belts, connections from said Worm Wheel to the delivery belts for driving the same, a cam on the cam shaft, a shaft provided with iiy sticks, an arm on said shaft in position to be operated by said cam, whereby the fly sticks will be moved between the endless chains 4to deliver a bunch of papers from the chains to the delivery belts, and a spring for moving the fly sticks in opposition to the cam motion.

3. In a delivery mechanism the combination of endless delivery chains, shafts provided with pulleys vfor operating the chains, a cam shaft driven from one of said shafts, a cam on the cam shaft, a Worin on said cam shaft, `a Worm wheel meshing with said Worm, delivery belts, connections from said worm Wheel to the delivery belts for driving same, a shaft provided with fly sticks and an arm on said shaft in position to be operated by said cam whereby the fly sticks would be moved between the endless chains to deliver bunches of papers from the chains to the delivery belts.

4. In a delivery mechanism the combination of endless chains, shafts provided with pulleys over which said chains travel, and guides adjacent and parallel to the chains 'and having spaces between them constituting guiding spaces for the sheets carried by the chains, a cam shaft, a worm on the cam shaft, delivery belts, connections from said worm Wheel to the delivery belts for driving saine, a shaft provided with fly sticks, an arm on said shaft in position to be operated by said cam Awhereby the ily sticks will be moved between the endless chains to deliver a bunch of papers from the chains to the delivery belts on which said papers are placed by the fly sticks, and means for operating the delivery belts from the cam shaft. y

OSQAB, CIAOESEN. ISIDOR TORNBERG. 

